import java.awt.*;
import java.util.ArrayList;
import java.util.Comparator;
import java.util.Scanner;
import java.util.logging.Handler;
import java.util.logging.LogRecord;

public class GsonTest {
    public static void main(String[] args) {
        ArrayList<Integer> list = new ArrayList();
        list.add(1);
        list.add(5);
        list.add(2);
        System.out.println(list.contains(5));
    }
}
